<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        *{
            margin: 0;
            height: 0;
        }
        .outer{
            width: 100vw;
            height: 100vh;
            margin: auto;
            background-color: #57c3c2;
            animation: move1 2s linear;
            text-align: center;
            font-size: 4vh;
        }
        .box{
            margin-top: 48vh;
            animation: move2 1s 2s forwards;
            opacity: 0;
        }
        a{
            text-decoration: none;
            color: #000;
        }
        .outer::before{
            content: '';
            display: table;
            clear: both;
        }
        @keyframes move1{
            0%{
                width: 0;
                border-radius: 50%;
                background-color: #57c3c2;
            }
            15%{
                width: 100vw;
                border-radius: 50%;
                background-color: #57c3c2;
            }
            30%{
                width: 100vw;
                /* border-radius: 50%; */
                background-color: #57c3c2;
            }
            45%{
                width: 100vw;
                border-radius: 50%;
                background-color: #e9d7df;
            }
            60%{
                width: 0;
                border-radius: 50%;
                background-color: #e9d7df;
            }
            75%
            {
                width: 100vw;
                /* border-radius: 50%; */
                background-color: #e9d7df;
            }
            90%{
                width: 100vw;
                /* border-radius: 50%; */
                background-color: #2376b7;
            }
            100%{
                width: 100vw;
                /* border-radius: 50%; */
                background-color: #2983bb;
            }
        }
        @keyframes move2{
            0%{
                font-size: 0;
                opacity: 0;
            }
            67%{
                font-size: 0;
                opacity: 0;
            }
            100%{
                font-size: 4vh;
                opacity: 1;
            }
        }
    </style>
</head>
<body>
    <div class="outer">
        <div class="box">
            <p>
                <a href="./jd.html">杜红广</a>
            </p>
        </div>
        <!-- <p>杜红广</p> -->
    </div>
</body>
</html>